### Description

So et al reported equations for estimating body weight in pediatric patients. The authors are from the University of North Carolina Children's Hospital and Moses Cone Health System in Greensboro, North Carolina.

Patient selection: <= 10 years of age

Parameters:

(1) age in years (<= 10 years of age)

(2) gender

(3) race (black vs nonblack)

Model A - Analogous to Leffler Formula

 Patient Weight in kilograms Age < 1 year, Black, Male (6.93 * (age)) + 3.15 + 0.24 - 0.22 Age < 1 Year, Black, Female (6.93 * (age)) + 3.15 - 0.22 Age < 1 Year, Nonblack, Male (6.93 * (age)) + 3.15 + 0.24 Age < 1 Year, Nonblack, Female (6.93 * (age)) + 3.15 Age >=1 year, Black, Male (3.48 * (age)) + 5.61 + 0.65 Age >= 1 Year, Black, Female (3.48 * (age)) + 5.61 Age >= 1 Year, Nonblack, Male (3.1 * (age)) + 5.61 + 0.65 Age >= 1 Year, Nonblack, Female (3.1 * (age)) + 5.61

When condensed

 Patient Weight in kilograms Age < 1 year, Black, Male (6.93 * (age)) + 3.17 Age < 1 Year, Black, Female (6.93 * (age)) + 2.93 Age < 1 Year, Nonblack, Male (6.93 * (age)) + 3.39 Age < 1 Year, Nonblack, Female (6.93 * (age)) + 3.15 Age >=1 year, Black, Male (3.48 * (age)) + 6.26 Age >= 1 Year, Black, Female (3.48 * (age)) + 5.61 Age >= 1 Year, Nonblack, Male (3.1 * (age)) + 6.26 Age >= 1 Year, Nonblack, Female (3.1 * (age)) + 5.61

Model B - analogous to Theron Formula

 Patient Weight in kilograms Black, Male EXP((0.228 * (age)) + 1.73 + 0.05) Black, Female EXP((0.228 * (age)) + 1.73) Nonblack, Male EXP((0.244 * (age)) + 1.73 + 0.05) Nonblack. Female EXP((0.244 * (age)) + 1.73)

When condensed

 Patient Weight in kilograms Black, Male EXP((0.228 * (age)) + 1.78) Black, Female EXP((0.228 * (age)) + 1.73) Nonblack, Male EXP((0.244 * (age)) + 1.78) Nonblack. Female EXP((0.244 * (age)) + 1.73)

Limitations:

• Additional studies are needed to test the validity of these equations.